Window ventilator



` Jan. v4 ,41927.

A. A. CRAIG 'WINDOW VENTILATOR Filed Ju1y31, 1922 Patented `ian. Y4, 1927.

ARTHUR A. CRAIG. OF CHICAGO, ILLINOIS.

WINDOW VENTILAT OR.

Application ined July 31,

My invention relates to Window ventilators of the type adapted Jfor insertion in awindow frame., and held in place by rictional engagement between their ends and the sash members7 and the invention may be considered as an improvement over the structure disclosed in my Patent No. 1.524,- 024, oi. January 27, 1925. In the arrangenient ot this patent, the sealing strips ot U-cross section are entirely banked by rigid and unyielding plates so that the window trame engaging edges of the sealing strips will not be suiiiciently {ieXible to insure perfect engagement and seal where a window trame may be out ot' plumb or otherwise distorted. The object ot' my present invention is to acquire the necessary fiexibility b-y providing the strips with air space behind their trame engaging edges so as to gire the ventilator a wide range ot e-.fconnnodation to surfaces which are uneven and out of true alignment.

Referring to the drawings,

Figure 1 is a View of theparts for forming a sealing unit and illustrating the manner o'l assembling such parts;

Fig. 2 is an assembled view of the parts;V

Fig, 3 a similar view showing the parts secured together;

4L is an isometric view of a ventilator with the sealing unit attached thereto and showing also an arrangement for securing the panel sections together;

Fig. 5 is an enlarged cross sectional view on plane 5-5 Figure 4; and

Fig. 6 is a plan view illustrating a slightly modified form of assembly of a ventilator section and sealing unit.

Reterring to Fig. l, represents a rectangular pece ot resilient material such as rubber and 3l represents the metal clips of U-shaped cross section which are slipped over the longitudinal ends o-t the material and then placed under pressure in order to tghtly clamp the material. Fig. 2 shows the sealing material or member 30 bent on a line midway between the metal strips 31 to bring suoli metal strips against each other and into parallelism, and as the material 3 1922. Serial No. 578,545.

was n'iade ot sufficient Width it Will extend a sutiicient distance beyond the outer edges ot the strips to leave an air pocket or space A Within the bend or fold ot the material. Securing means such as tacks or rivets may be applied along the strips to secure them together in alinement as shown in Fig. 3.

Referring to Fig. 4, the panel structure shown comprises the sections 4 and 5 which are held together in adjusted positions by means of metal U-shaped clips 35 secured by one arm to apanel as by means of rivets 3G and engaging with the other arm along the outside oli the other panel, said other arms extending to the bottom edge of the panel tor riding in a groove 37 formed by turning over the edge of the panel. After the proper adjustment of the ventilator panels has been made for the window frame to be fitted7 the panels are clamped together by wing bolts 39 carried by the clips, as clearly sho-wn in Fig. 5.

At the outer end of each panel are secured a pair of sealing units, the units being applied against the opposite faces ot the panel with the outer edges ot the strips 31 registering with the panel edge and with the free and air pocleted ends of the sealing material extending beyond the units and panel end, and the units may be secured to the panel as by means of rivets 33.

Figure 6 illustrates an alternative form of construction in which the sealing units are carried in a double U--soclret 4.0 which receives the panel end to properly align the sealing ends of the units.

With the air pocketed projecting ends of the resilient sea-ling material irregularities in the sides of the Window frames will be fully compensated for. Where the Window trame sides are not perpendicular to the sill, the yielding air pocketed ends of the sealing units will never-the-less accommodate themselves to such irregularity and engage snugly and with sealing tit against the vtrame sides while the lower edges ot the ventilator panels rest aga-inst the sill.

Having described my invention7 I claim as follows:

n combination with an end of a panel of the U from each other, and means for type ventilator, a` retaining element includsecuring the unylelfling strips and the coning` a plurality oetrips of yielding nlaterial lined poi-tions oir' the yielding strips to the l0 bent longitudinally int-o the form of a U Said end of Said Ventilator.

5 and having U-shiiped strips of unyielding` In Witness whereof, l hereunto subscribe material fitted over the edges thereof to coniny naine this 27th day of July, 1922. ne an air pocket `therein and spae the sides ARTHUR A. CRAIG. 

